The child is not a passive recipient of knowledge but an active participant in the learning process.
宇宙的美在于它的复杂性和简单性。
"The best performances come from a place of vulnerability and truth."
I don't believe in perfection. I think that's a very dangerous idea. It's a very unattainable idea.
2004年9月13日,81岁的杨振宁在清华大学开始为本科生讲授普通物理。他说